Linking error when compiling Allegro example [closed]

I am currently learning about game development tools and decided to use Allegro and OpenGL for starters. I've run into some problems in getting examples to compile though. It seems the allergro.h library isn't linking correctly. Some web searching didn't help.

Here's my example code:

#include <stdio.h>
#include <allegro.h>

int main()
{
    allegro_init();
    //...
    return 0;
}
END_OF_MAIN();

I'm running this command to compile it:

g++ allegroTemplate.cpp -o allegroTemplate

This is the error I'm getting:

/tmp/ccbpAXIY.o: In function `main':
allegroTemplate.cpp:(.text+0x2a): undefined reference to `_install_allegro_version_check'
collect2: ld returned 1 exit status

I'm running this in Ubuntu.